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Turner Motorsport Front Control Arm Bearing Upgrade - Pre-Installed

Designed for the driver that prefers to dial in their suspension with camber plates - Pre-installed in a Lemforder arm
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Turner Motorsport
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Product Details

It’s no secret that BMW’s suffer from weak, failure prone front thrust arm bushings.  The stock rubber bushings are designed to allow significant fore/aft movement of the front wheels and are fluid filled to help absorb road impacts.  This compliant design maximizes daily driving comfort and helps add to the “luxury” feeling of your BMW, but it also contributes to the numb, disconnected feeling that many enthusiasts complain about with modern BMW’s.  Not only is the OEM design far from ideal for the street or racing enthusiast that is looking for optimal handling and braking performance, the constant twisting and deflection required of the rubber bushing often causes premature failure, resulting in degraded handling, wheel shimmy, delayed steering response, delayed braking response, unwanted alignment change, and poor tire wear.

Introducing the new Turner Control Arm Ball Joints!  The Turner engineering team set out to design a solution that offers far superior durability when compared to OEM, requiring no modification and offering nearly instantaneous cornering and braking response for the absolute best road feel and driving experience possible.  Our control arm monoballs utilize a sealed OEM BMW ball joint for exceptional quality and durability.  

By utilizing a sealed ball joint, Turner achieved the ultimate in terms of low friction no bind suspension travel with no unwanted deflection, providing exceptional steering precision, turn-in response, and direct braking feedback; all while maintaining exceptional comfort and durability levels making these an excellent no compromise upgrade even for a street car.  These control arm monoball / ball joints are a must have for any track car, but are also completely street-able and are a great upgrade for any enthusiast that enjoys spirited driving.

If you're the kind of driver that prefers a little more precision in their suspension adjustment then this product offers stock fitment with the bearing upgrade found in AWD & M cars. The advantage is the ability to dial in camber with the use of a quality camber plate for an increased range of adjustment, allowing you to find the sweet spot in your steering and handling.


  • Corrosion resistant 304 Stainless steel shell.
  • Corrosion resistant 304 Stainless steel bolt sleeves.
  • Corrosion resistant 304 Stainless steel snap rings.
  • Sealed spherical ball joint for long service life.  
  • OE fitment.
  • Does not require vehicle to be at ride height to be torqued to spec.


Performance Benefits:

  • Very streetable, quieter than poly with minimal NVH.
  • Improved steering feel and cornering response
  • Reduced friction over OE rubber bushing with no unwanted deflection under cornering and braking forces.
  • Does not require vehicle to be at ride height to be torqued to spec.

This Part Fits the Following Vehicles

Make Model Submodel Engine
BMW E90 325i N52 3.0L
BMW E90 328i N52 3.0L
BMW E90 330i N52 3.0L
BMW E90 335d M57 3.0L
BMW E90 335i N54 3.0L
BMW E90 335i N55 3.0L
BMW E91 328i N52 3.0L
BMW E92 328i N52 3.0L
BMW E92 335i N54 3.0L
BMW E92 335i N55 3.0L
BMW E92 335is N54 3.0L
BMW E93 328Ci All
BMW E93 328i N52 3.0L
BMW E93 335i N54 3.0L
BMW E93 335i N55 3.0L
BMW E93 335is N54 3.0L
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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